Low-lossfiber optic rotaryjoint using C-lens colli mators

作     者：JIA Da-gong JING Wen-cai ZHANG Yi-mo ZHOU Ge ZHANG Jin TANG Feng 

作者机构：College of Precision Instrument ＆ Opto-electronics Engineering Key Loboratory of Opto-electronics Information and Technical Science Ministry of Education Tianjin University Tianjing 300072 China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2005年第1卷第3期

页      面：221-223页

学科分类：08[工学] 0803[工学-光学工程] 

基　　金：This work was supported by the National Natural Science Foun-dation of China under contract No.60377031 , National BasicResearch Programof China under contract No.2003CB314907 

主　　题：光纤 C透镜 瞄准仪 光学旋转 

摘      要：A low-loss fiber optic rotary joint (FORJ) has been designed by using two kinds of C-lens collimators. Its insertion loss and insertion loss variation due to rotation with single-mode fiber collimator is less than 1.76 dB and 0.43 dB *** maximum insertion loss and coupling variation due to rotation with multi-mode fiber collimator is 1.71 dB and 0.29 dB, respectively. This kind of FORJ features low insertion loss, small coupling variation due to rotation and low cost.